"Installing" new lawn or turf can mean a few different things, which depend on your turf's condition:
No property manager wants to budget for installing new turf. It’s labor intensive and expensive, not to mention your property will be “under construction” for an extended period of time. Seed takes about six weeks to establish — and it will take longer before the turf fills in and looks lush.
You don’t want to go that route unless you have to. So be sure to provide your lawn with proper nutrients, irrigate appropriately, and enlist a reputable commercial lawn care professional that can give you honest advice on how to best manage weeds, disease, and other turf damage concerns.